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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Oaks North Mobile Home Estates

Monochlorobenzene is used as a solvent for pesticides, a degreasing agent and an intermediate for manufacturing other chemicals. It causes liver and kidney damage in studies of laboratory animals.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND40ND
2016ND30ND
2017ND30ND
2018ND30ND
2019ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 70 ppb

The EWG Health Guideline of 70 ppb for monochlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for monochlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-15AC50577ND
2014-04-15AC50581ND
2014-07-01AC58577ND
2015-02-10AC79937ND
2015-02-10AC79931ND
2015-02-10AC79935ND
2015-06-18AC96498ND
2016-05-18AD37304ND
2016-05-18AD37294ND
2016-05-18AD37308ND
2017-11-01AE03204ND
2017-11-01AE03208ND
2017-11-01AE03210ND
2018-04-26AE24186ND
2018-04-26AE24192ND
2018-04-26AE24194ND
2019-08-14AE78658ND
2019-08-14AE78646ND
2019-08-14AE78660ND